Door track and hanger.



G. J. HATZ.

DOOR TRACK AND HANGER. APPLIOATYION FILED DEC. 21, 1909.

Patented'iune 20, 1911 W I/VVENIOR WITNESSES GEORGE J. HA'IZ, OFDMAHA,'-NEBRASKA.

noon TRACK AND HANGER.

Specification of Letters Patent.

Patented June 20, 1911.

Application filed December 21, 1909. Serial No. 534,246.

- tracks therefor, particularly adapted for use on freight cars.

The object of the invention is to combine simplicity and cheapness withsmoothness of operation.

By slight modification of form the invention provides either a hangerfor use wit-h a track having a separate hood, or a hanger for use with atrack which also forms the hood, and in both forms above mentioned thedesign of the hanger and track is such that lateral removal of the dooris impossible. Other incidental advantages will be apparent from thedescription.

The invention accordingly consists in the features of construction,combination of elements and arrangement of parts which will beexemplified in the construction hereinafter set forth, and the scope ofthe a pplica tion of whichwill be indicated in -thc following claims.-

In the accompanying drawing wherein is illustrated two of variouspossible embodiments of certain features of this'invcntion, Figure 1 isa cross sectional view through a door opening of a box car. Fig. 2 is aside elevation partly in section showing the parts illustrated inFig. 1. Figs. 3 and l are detail views of the door hanger. Fig. 5 is across sectional View of the door opening of a car with a modified formof this invention applied thereto.

Similar reference characters refer to similar parts throughout theseveral views of the drawing.

While the embodiment of'the invention hereinafter described is shown inconnection with the sliding door of a box car to which it is applied, itis of course to be understood that certain features of the door trackand door hanger may be applied to other railway cars, streetcars,'steamships or any building or device requiring a sliding door.

Referring to these drawings in detail, 1

represents the upper side-plate of a wooden box car beneath the lowercourse of roof 2 to which is secured the siding 3 and the sidefacia-plate 4t beneath which is the upper part of the door frame oradoor lintel 5. A track 6 secured to the plate 1 by means of a bolt 7passing therethrough, extends across the top of the door opening and toone side thereofa sufficientdistance to permit a door 8 to be moved toopen position. The track 6 is preferably of concave construction orU-shaped in cross-section along which a hanger, hereinafter described,is adapted to travel. A suitable hood 9 is preferably secured with thetrack 6 to the car by means of the bolt 7 which holds the track inplace.

To the door are attached hangers 1O having curved portions 11 extendingfrom the upper part thereof, which are bent upwardly and inwardly,terminating in a shoe 12 adapted to slide along the track. The numberand location of such hangers is a matter of design. The shoe 12 issemi-circular, or convex in cross-section, and is so designed as toreduce the friction of the contacting surface thercof with the track toa minimum, as

the shoe is curved longitudinally as well as transversely as clearlyshown in Fig. 2. The door hanger 10 is secured to the door by aplurality of bolts 18 and is provided at its upper portion with ashoulder 14 extending over the upper edge of the door in close proximityto' the shoe 12 carried on the curved portion 11 of the hanger. therebypreventing the door from becoming detached from the track byany lateralmovement as the upper and outer edge of the track 6 extends somedistance above the cenhanger connecting the curved and body portions asshown in Fig. 3., A peripheral flange 1G is also provided to give addedstrength to the body.

Referring to Fig. 5 of the drawings it is to be noticed thatthe doortrack may be changed in form to provide a hood and door track combinedin one piece 17. The shoe 18 of the door hanger is reversed and the"H-l'WYl portion 11 is positioned near the inside of the door, therebyallowing the shoe ..ably cast integral, but if desired the slidingsurface of the shoe may be made of a different material to decrease thefriction or increase its wearing properties. The doorhanger is sodesigned that when applied to a door it will. bring the top ol' theshoulder 14: projecting over the upper edge of the door, close to thebottom of the door track 6, allowing sufiicient clearance between thetop of the shoulderand the bottom of the track to prevent binding. Thisdist a nce is so proportioned that it is less than the distance from thebottom of the tracl: G and to the top of the upturned edge of the flangeabove the line from which the radius oi. the curve is struck, therebypositively preventing any lateral or tilting movement of the door whichcan only be removed from the track by removing the hanger securedthereto. It

will thus be seen that this invention elimi-' nates the use of rollers,filler box and brackets usually employed in sliding-door constructionsof this general style and provides a practical sliding door hanger andtrack therefor composed of a minimum number of parts, eflicient and easyin operation, simple in construction and cheap to manufacture.

it is obvious that many changes and modifications might be made in theabove described structure without departing from the spirit of theinvention and I do not limit myself to the particular embodiments setforth.

Having described my invention, what I claim as new, and desire to secureby Letters Patent is:

l. The combination of a structure having a doorway; a concave tracksecured to said structure; a door; and a hanger connected to the door,said hanger being formed with 'a shoulder extending over the top edge ofthe door, and having a curved portion terminating in a shoe Whosebearing surface is curved longitudinally and transversely so as tocontact with the track, at substantially a single point.

2. The combination of a structure having a doorway; a concave tracksecured to said structure; a door; and a hanger secured to the door andhaving a curved portion. terminating in a convex shoe adapted to contactwith the concave surface of the track at a single point, said curvedportion serving to bring the shoe into close proximity to the upper edgeof the door to prevent lateral removal of the door.

3. The col'nbination of a structure having a doorway; a track ofU-shaped cross section carried by said structure; a door; and a hangerattached to the door, sald hanger having a longitudinally andtransverselycurved shoe positioned above-the-floor in,

close proximity thereto and adapted to contact with the concave side ofthe track at a single point.

4. The combination of a structure having v a doorway; a door; a hangerattached to the door, said hanger having a portion'extend ing upwardlyfrom the door, then curved outwardly and downwardly and terminat-j ingin a shoe curved longitudinally and transversely on its bearing surface;and a tack carried by said structure said track U-shaped track tosupportthe hanger shoe. '85

In testimony whereof I ailix my signature, in the presence ottwowltnesses.

GEORGE J. HATZ.

Witnesses:

F. J.'JUMPER, EDMUND B. DAILEY.

Copies of this patent may he obtained for five cents each, by addressingthe Commissioner of Iatenta Washington, -D. (1.

